The formula is a permutation in which n represents the sample points in the set, while r represents the number of sample points in each permutation.
Given:
Prove:
Solution:
Putting the value of equation (ii) into the equation (i):
putting the value x into the equation (i):
Therefore, the value of x= 4
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The steps in evaluating each of the following expressions is shown below.
<h3>What is an expression?</h3>
An expression can be defined as a mathematical equation which shows the relationship existing between two or more numerical quantities or variables.
<h3>How to evaluate the given expressions?</h3>
15 - 35/7 - 2 + 3 - 4
15 - (35/7) - 2 + 3 - 4 (bracket and division)
15 - 5 - 2 + 3 - 4 (regroup)
15 + 3 - 5 - 2 - 4 (subtract and add)
18 - 11 = 7.
<h3>Expression 2.</h3>
10 + 2(9 - 5) - 16/18
10 + (2 × 4) - 8/9 (bracket and division)
10 + 8 - 8/9 (add)
18 - 8/9 (subtract)
162/9 - 8/9 = 17 1/9 or 154/9.
Read more on expressions here: brainly.com/question/12189823
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<u>Complete Question:</u>
Show your steps in evaluating each of the following expressions. The steps count 4 points each, the answer is 1 point.
A. 15 - 35/7 - 2 + 3 - 4
B. 10 + 2(9 - 5) - 16/18
What is the quotient of 5/8 and 20?Quotient is the term used to name the answer of the 2 or more digits being divided with each other.Now, we have 2 different numbers. A fraction and a whole number.First thing to do is to convert 5/8 to decimal number.=> 5 / 8 = 0.625Now, we have 2 numbers that needs to be divided.=> 20 as our dividend and 0.625 as our divisor=> 20 / 0.625 = 32<span>32 is the quotient when you divide 5/8 by 20</span>
